Table 7.
Observation investigation of the stability of NPs at different salinities and dilution ratio of seawater as IW for 7 days.
| Nanoparticle | The concentration of NPs in brines (ppm) | NPs stability in brines | |||
|---|---|---|---|---|---|
| 500 | 1000 | 2000 | 2500 | ||
| SiO2 | Stable | Stable | Stable | Unstable | Only stable at SW#10D |
| CuO | Unstable | Unstable | Unstable | Unstable | Unstable |
| ZnO | Unstable | Unstable | Unstable | Unstable | Unstable |
| Al2O3 | Unstable | Unstable | Unstable | Unstable | Unstable |
| MgO | Unstable | Unstable | Unstable | Unstable | Unstable |